Communication Apparatus Capable of Mediating Wireless Communications for External Apparatus

1. A communication apparatus comprising: a first communication unit configured to connect with an external apparatus via communication in compliance with a first communication method; and a control unit configured to control the communication to be performed by the first communication unit, wherein, in a case where the first communication unit receives a search request including information indicating that an external apparatus is a transmission source from the external apparatus via communication in compliance with the first communication method, the control unit determines whether the external apparatus which is the transmission source of the search request including information indicating that the external apparatus is the transmission source has been set to be paired with the communication apparatus via communication in compliance with the first communication method before receiving the search request, in a case where the control unit determines the external apparatus has been set to be paired with the communication apparatus, the control unit controls the first communication unit so as to transmit a search request designating the communication apparatus as the transmission source to other apparatus via communication in compliance with the first communication method, wherein the control unit controls the first communication unit so as to receive a search response replying to the search request designating the communication apparatus as the transmission source from the other apparatus via communication in compliance with the first communication method, wherein the control unit controls the first communication unit so as to transmit information corresponding to the search response received by the first communication unit to the external apparatus via communication in compliance with the first communication method, wherein the information corresponding to the search response contains address information of the other apparatus in compliance with the first communication method for performing communication using the first communication method between the external apparatus and the other apparatus, not via the communication apparatus.

2. The communication apparatus according to claim 1 , further comprising: a holding unit configured to hold identification information usable to identify the external apparatus that can be registered by a user operation, wherein, the control unit determines whether the external apparatus which is the transmission source of the search request including information indicating that the external apparatus is the transmission source has been set to be paired with the communication apparatus via communication in compliance with the first communication method before receiving the search request based on whether identification information of the external apparatus is already held by the holding unit before receiving the search request including information indicating that the external apparatus is the transmission source.

3. The communication apparatus according to claim 1 , wherein the search request including the information indicating that the external apparatus is the transmission source, is broadcasted.

4. The communication apparatus according to claim 1 , wherein the search request including the information indicating that the external apparatus is the transmission source, is transmitted to the communication apparatus.

5. The communication apparatus according to claim 1 , wherein the search request designating the communication apparatus as the transmission source, is broadcasted.

6. The communication apparatus according to claim 1 , wherein the first communication method is a Bluetooth communication method.

7. The communication apparatus according to claim 1 , further comprising: a second communication unit configured to connect with the other apparatus via communication in compliance with a second communication method, which is different from the first communication method, wherein the control unit controls the first communication unit so as to broadcast the search request designating the communication apparatus as the transmission source according to a user operation, wherein the control unit controls the first communication unit so as to share communication parameters with the other apparatus that has transmitted the search response replying to the search request designating the communication apparatus as the transmission source and selected by a user via communication in compliance with the first communication method, to establish communication in compliance with the second communication method, wherein the control unit controls, when the sharing of the communication parameters required in establishing communication in compliance with the second communication method has been completed by the first communication unit, the second communication unit to start establishing communication with the other apparatus in compliance with the second communication method.

8. The communication apparatus according to claim 7 , wherein the control unit controls the first communication unit so as to transmit a thumbnail of image data to the other apparatus selected by the user via communication in compliance with the first communication method before sharing the communication parameters required in establishing communication in compliance with the second communication method, and wherein the control unit controls, when the communication in compliance with the second communication method is established, the second communication unit so as to transmit the thumbnail transmitted image data to the other apparatus via communication in compliance with the second communication method.

9. The communication apparatus according to claim 7 , wherein the second communication method is a wireless LAN communication method.

10. The communication apparatus according to claim 1 , wherein the external apparatus is a digital camera.

11. The communication apparatus according to claim 1 , wherein no telephone number is allocated to the external apparatus.

12. The communication apparatus according to claim 1 , wherein the communication apparatus is a portable telephone.

13. The communication apparatus according to claim 1 , wherein a telephone number is allocated to the communication apparatus.

14. The communication apparatus according to claim 1 , wherein in a case where the control unit determines the external apparatus has been set to be paired with the communication apparatus, the control unit controls the first communication unit in such a way as to transmit the search request designating the communication apparatus as the transmission source to other apparatus via communication in compliance with the first communication method and transmit a search response replying to the received search request to the external apparatus.

15. A method for controlling a communication apparatus having a first communication unit, comprising: determining, in a case where the first communication unit receives a search request including information indicating that an external apparatus is a transmission source from the external apparatus via communication in compliance with the first communication method, whether the external apparatus which is the transmission source of the search request including information indicating that the external apparatus is the transmission source has been set to be paired with the communication apparatus via communication in compliance with the first communication method before receiving the search request; transmitting, in a case where, in the determining, the external apparatus is determined to have been set to be paired with the communication apparatus, a search request designating the communication apparatus as a transmission source to other apparatus via communication in compliance with the first communication method; receiving a search response replying to the search request designating the communication apparatus as the transmission source from the other apparatus via communication in compliance with the first communication method; and transmitting information corresponding to the received search response to the external apparatus via communication in compliance with the first communication method, wherein the information corresponding to the search response contains address information of the other apparatus in compliance with the first communication method for performing communication using the first communication method between the external apparatus and the other apparatus, not via the communication apparatus.

16. A non-transitory computer-readable storage medium storing a program for causing a computer to perform the method according to claim 15 .